Riso Executive and Leadership Team

June, 2026

Leadership Overview

Riso has 5 executives leading key functions including strategy, finance, and operations.

Driven by a commitment to innovation, Riso transforms the paper communication field with unique products and services, evolving from its origins as a mimeograph printing company to a leading printer manufacturer.

Leadership Roles at Riso

  • President & Chief Executive Officer - Kenji Oshima
  • President & Chief Executive Officer - Akira Hayama
  • Chief Financial Officer - Paul Brennan
  • President - Nathan Riso
  • President - Minoru Nakashima
  • Kenji Oshima - President & Chief Executive Officer

    Kenji Oshima, the President & Chief Executive Officer at Riso, directs the company's overarching strategy and global operations. This leadership role involves guiding Riso's evolution from its historical foundation in mimeograph printing toward its current position as a manufacturer of advanced printers. Oshima's focus centers on fostering the development of fundamentally unique products, a core tenet of Riso's business policy. The Chief Executive Officer ensures that Riso's paper communication field offerings remain at the forefront of technological advancement. By overseeing strategic initiatives, Kenji Oshima drives the company's expansion and market impact, ensuring sustained growth and innovation in the competitive landscape. This executive leadership ensures the company's continued success in delivering specialized solutions.

    Akira Hayama - President & Chief Executive Officer

    Akira Hayama, the President & Chief Executive Officer at Riso, spearheads the company's strategic direction and operational execution. Hayama's leadership ensures Riso's continued commitment to developing unique products within the paper communication sector. This executive guides the transformation of Riso's business model, emphasizing its role as a manufacturer of printers rather than solely an office supply producer. The Chief Executive Officer's responsibilities include driving innovation and maintaining Riso's competitive edge in the global market. By overseeing key strategic decisions, Akira Hayama reinforces the company's development policy of creating distinct and valuable offerings. This executive's tenure focuses on expanding Riso's reach and impact through advanced printing technologies and services.

    Paul Brennan - Chief Financial Officer

    Paul Brennan, the Chief Financial Officer at Riso, manages the company's financial health and strategic fiscal planning. Brennan oversees all financial operations, including budgeting, forecasting, and investment strategies, ensuring alignment with Riso's long-term growth objectives. This executive's role is critical in supporting the company's transition and expansion within the printer manufacturing sector. The Chief Financial Officer analyzes market trends and financial data to inform executive decisions, driving profitability and operational efficiency. Paul Brennan's expertise ensures robust financial controls and optimizes resource allocation across Riso's unique product development initiatives. This leadership position is vital for sustaining Riso's innovative trajectory and market competitiveness.

    Nathan Riso - President

    Nathan Riso, the President at Riso, directs key operational initiatives and strategic market development. Riso's leadership focuses on enhancing the company's unique product portfolio within the paper communication field. This executive oversees the integration of new technologies and manufacturing processes, supporting Riso's evolution into a prominent printer manufacturer. The President ensures operational excellence and drives the implementation of innovative solutions that align with the company's development policy. Nathan Riso's responsibilities include fostering cross-functional collaboration to achieve business objectives and expand market reach. This executive's guidance is instrumental in maintaining Riso's competitive advantage and delivering exceptional value to customers globally.
    Nathan Riso

    Minoru Nakashima - President

    Minoru Nakashima, the President at Riso, leads critical aspects of the company's strategic growth and operational management. Nakashima's focus involves advancing Riso's unique product development, particularly in the printer manufacturing domain. This executive ensures the effective execution of business strategies aimed at strengthening Riso's position in the paper communication market. The President oversees departmental functions, driving efficiency and innovation across the organization. Minoru Nakashima's leadership supports the company's commitment to creating fundamentally unique offerings and expanding its global footprint. This executive's role is pivotal in navigating market dynamics and achieving sustained success for Riso.
    Minoru Nakashima

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    Frequently Asked Questions Regarding Riso Top Executives and Leadership Team

    Who leads Riso?
    Riso is led by Kenji Oshima (President & Chief Executive Officer), along with executives such as Akira Hayama (President & Chief Executive Officer) and Paul Brennan (Chief Financial Officer).
    Who is part of Riso’s executive team?
    The executive team of Riso includes leaders such as Kenji Oshima (President & Chief Executive Officer), Akira Hayama (President & Chief Executive Officer), Paul Brennan (Chief Financial Officer) and other senior executives.
    How many executives does Riso have?
    Riso has 5 executives leading key business areas.
    What roles are included in Riso’s leadership team?
    The leadership team of Riso includes roles such as President & Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, President, President.